1、*USACE / NAVFAC / AFCESA / NASA UFGS-33 73 00.00 40 (November 2008)-Preparing Activity: NASA SupersedingUFGS-33 73 00.00 40 (August 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION TABLE OF CONTENTSDIVISION 33 - UTILITIESSECTION 33 73 00.00
2、 40UTILITY TRANSFORMERS11/08PART 1 GENERAL1.1 REFERENCES1.2 SUBMITTALS1.3 GENERAL REQUIREMENTS1.4 FACTORY TESTING1.5 QUALIFICATIONS FOR MANUFACTURERSPART 2 PRODUCTS2.1 EQUIPMENT STANDARDS2.2 EQUIPMENT REQUIREMENTS2.2.1 Impedance2.2.2 Short-Circuit Withstand2.2.3 Voltage Ratings2.2.4 Insulation Class
3、2.2.5 Basic Impulse Insulation Levels2.3 CONSTRUCTION2.3.1 Tank2.3.2 Bushings2.3.3 Cores2.3.4 Coils2.3.5 Cooling Provisions2.3.6 Automatic Load-Tap Changing Equipment2.4 INSULATING OIL2.5 ACCESSORIES2.5.1 Space Heaters2.5.2 External Voltage Source2.5.3 Miscellaneous2.6 PAINTINGPART 3 EXECUTION3.1 IN
4、STALLATION3.2 FIELD TESTINGSECTION 33 73 00.00 40 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- End of Section Table of Contents -SECTION 33 73 00.00 40 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
5、se from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-33 73 00.00 40 (November 2008)-Preparing Activity: NASA SupersedingUFGS-33 73 00.00 40 (August 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION 33 73 00.00 40UTILITY TRANSFORMERS11/08*NOT
6、E: This specification covers the requirements for station power transformers, single- and three-phase. Indicate rating, size, and installation details on drawings.Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applic
7、able items(s) or insert appropriate information.Remove information and requirements not required in respective project, whether or not brackets are present.Comments and suggestions on this guide specification are welcome. Direct them to the technical proponent of the specification. A listing of tech
8、nical proponents, including their organization designation and telephone number, is on the Internet.Submit recommended changes to a UFGS as a Criteria Change Request (CCR).*PART 1 GENERAL1.1 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the guide specification
9、. The publications are referred to in the text by basic designation only and listed in this paragraph by organization, designation, date, and title.Use the Reference Wizards Check Reference feature when you add a RID outside of the Sections Reference Article to automatically place the reference in t
10、he Reference Article. Also use the Reference Wizards Check Reference feature to update SECTION 33 73 00.00 40 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-the issue dates.References not used in the text are automatically deleted from this se
11、ction of the project specification when you choose to reconcile references in the publish print process.*The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.ASTM INTERNATIONAL (ASTM)A
12、STM A 345 (2004) Standard Specification for Flat-Rolled Electrical Steels for Magnetic ApplicationsASTM B 48 (2000; R 2005e1) Standard Specification for Soft Rectangular and Square Bare Copper Wire for Electrical ConductorsASTM D 117 (2002) Standard Guide for Sampling, Test Methods, Specifications a
13、nd Guide for Electrical Insulating Oils of Petroleum OriginASTM D 1533 (2000; R 2005) Standard Test Method for Water in Insulating Liquids by Coulometric Karl Fischer TitrationASTM D 3487 (2000; R 2006) Standard Specification for Mineral Insulating Oil Used in Electrical ApparatusASTM D 3612 (2002)
14、Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas ChromatographyASTM D 877 (2002; R 2007) Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk ElectrodesASTM D 92 (2005a) Standard Test Method for Flash and Fire Points by Clevel
15、and Open Cup TesterASTM D 924 (2004) Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating LiquidsASTM D 974 (2008) Standard Test Method for Acid and Base Number by Color-Indicator TitrationINSTITUTE OF ELECTRICAL AND E
16、LECTRONICS ENGINEERS (IEEE)IEEE C37.121 (1989; R 2006) American National Standard for Switchgear Unit Substations RequirementsSECTION 33 73 00.00 40 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IEEE C57.12.00 (2006) Standard General Requirem
17、ents for Liquid-Immersed Distribution, Power, and Regulating TransformersIEEE C57.12.10 (1997) Safety Requirements for Transformers 230 kV and Below 833/958 Through 8333/10417 kVA, Single-Phase, and 750/862 Through 60 000/80 000/ 100 000 kVA, Three-Phase Without Load Tap Changing; and 3750/4687 Thro
18、ugh 60 000/80 000/100/000 kVA With Load Tap ChangingIEEE C57.12.80 (2002) Standard Terminology for Power and Distribution TransformersIEEE C57.12.90 (2006) Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating TransformersIEEE Std 57.19.00 (2004) Standard General Requirements an
19、d Test Procedures for Outdoor Apparatus BushingsIEEE Std 62 (1995; R 2005) Guide for Diagnostic Field Testing of Electric Power Apparatus-Part 1: Oil Filled Power Transformers, Regulators, and ReactorsNATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70 (2007; AMD 1 2008) National Electrical Code - 20
20、08 Edition1.2 SUBMITTALS*NOTE: Review Submittal Description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only the submittals required for the project. Keep submittals to the minimum required for adequate quality control.A “G” following a submittal
21、item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only delete an existing “G” if the submittal item is not complex and can be reviewed through the Contractors Quality Control system. Only add a “G” if the submittal is sufficiently importan
22、t or complex in context of the project.For submittals requiring Government approval on Army projects, use a code of up to three characters within the submittal tags following the “G“ designation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) a
23、re: “AE“ for Architect-Engineer; “DO“ for District Office SECTION 33 73 00.00 40 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(Engineering Division or other organization in the District Office); “AO“ for Area Office; “RO“ for Resident Office
24、; and “PO“ for Project Office. Codes following the “G“ typically are not used for Navy, Air Force, and NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.*Government approval is required for submittals with a “G“
25、 designation; submittals not having a “G“ designation are for Contractor Quality Control approval.for information only. When used, a designation following the “G“ designation identifies the office that reviews the submittal for the Government. Submit the following in accordance with Section 01 33 00
26、 SUBMITTAL PROCEDURES:SD-02 Shop DrawingsSubmit Connection Diagrams in accordance with paragraph entitled, “General Requirements,“ of this section.Submit Fabrication Drawings in accordance with paragraph entitled, “General Requirements,“ of this section.Submit Installation Drawings for the secondary
27、 unit substation in accordance with the paragraph entitled, “Installation,“ of this section.SD-03 Product DataSubmit Equipment and Performance Data for the following items including life, test, system functional flows, safety features, and mechanical automated details.Power TransformersTransformer T
28、anksBushingsEnclosuresCoilsAutomatic Load-Tap Changing EquipmentAccessoriesSubmit Equipment Foundation Data for Power Transformers in accordance with paragraph entitled, “General Requirements,“ of this section.Submit Manufacturers Catalog Data in accordance with paragraph entitled, “General Requirem
29、ents,“ of this section.SD-06 Test ReportsSubmit Factory Test Reports for the following tests on power transformers in accordance with IEEE C57.12.90 and IEEE C57.12.00, Table 16.High-Voltage TestsInsulation-Resistance TestSECTION 33 73 00.00 40 Page 6Provided by IHSNot for ResaleNo reproduction or n
30、etworking permitted without license from IHS-,-,-Temperature-Rise TestsInsulation Power FactorOil Power FactorImpulse TestsImpedance and Load LossesSound TestsBushing TestsShort-Circuit TestsSD-07 CertificatesSubmittal of Certificates of Compliance of previous tests on similar units (type-testing) u
31、nder actual conditions for temperature-rise tests, bushing tests, impulse tests, and short-circuit tests in lieu of factory tests on actual units furnished is acceptable upon approval.SD-08 Manufacturers InstructionsSubmit Manufacturers Instructions for the Power Transformers including special provi
32、sions required to install equipment components and system packages. Provide special notices that detail impedances, hazards and safety precautions.SD-09 Manufacturers Field ReportsSubmit Field Test Reports for the following tests on power transformers in accordance with the paragraph entitled, “Fiel
33、d Testing“ of this section.Insulation Power FactorOil Power FactorOil Acidity TestWater-in-oil (Karl Fischer) TestsDissolved Gas AnalysisTurns Ratio TestsInsulation Resistance TestsSD-10 Operation and Maintenance DataSubmit Operation and Maintenance Manuals for the following equipment:Power Transfor
34、mersAutomatic Load-tap Changing EquipmentSpace Heaters1.3 GENERAL REQUIREMENTS*NOTE: If Section 26 00 00.00 20 BASIC ELECTRICAL MATERIALS AND METHODS is not included in the project specification, insert applicable requirements and delete the following paragraph.*Section 26 00 00.00 20 BASIC ELECTRIC
35、AL MATERIALS AND METHODS applies to work specified in this section.SECTION 33 73 00.00 40 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Submit Connection Diagrams for Power Transformers, Cores, Coils and Automatic Load-Tap Changing Equipment.
36、 Provide Connection Diagrams that indicate the relations and connections of the following items by showing the general physical layout of all controls, the interconnection of one system (or portion of system) with another, and internal tubing, wiring, and other devices Submit Fabrication Drawings fo
37、r Power Transformers, Transformer Tanks, Bushings, Enclosures, Cores, Coils, Automatic Load-Tap Changing Equipment and Accessories. Provide Fabrication Drawings that consist of manufacturers original fabrication and assembly details to be performed at the factory for the Project.Provide Power Transf
38、ormers, Transformer Tanks, Bushings, Enclosures, Cores, Coils, Automatic Load-Tap Changing Equipment and Accessories that meet or exceed specified material and performance requirements and reference standards.Submit Manufacturers Catalog Data for Power Transformers, Transformer Tanks, Bushings, Encl
39、osures, Cores, Coils, Automatic Load -Tap Changing Equipment, Sheet Metal and Accessories.Submittal of Certificates of Compliance of previous tests on similar units under actual conditions for temperature rise, bushing tests, and short-circuit tests in lieu of factory tests on actual units furnished
40、 is acceptable upon approval.Provide Equipment Foundation Data for power transformers that includes plan dimensions of foundations and relative elevations, equipment weight and operating loads, horizontal and vertical loads, horizontal and vertical clearances for installation, and size and location
41、of anchor bolts.1.4 FACTORY TESTINGProvide tests on transformers that include insulation-resistance tests of the windings, turns ratio tests, polarity and phase rotation tests, no-load loss at rated voltage, excitation current at rated voltage, impedance and load losses at rated current, insulation
42、power factor tests, impulse tests, temperature rise test, short circuit test, oil power factor tests, oil acidity tests, water-in-oil (Karl Fischer) tests, dissolved gas analysis, sound tests, dielectric tests, and bushing tests. Conduct Factory Test Reports in accordance with IEEE C57.12.90, IEEE S
43、td 62, ASTM D 3612, and IEEE C57.12.00, Table 16. Maximum acceptable insulation power factor is .5 percent for mineral oil insulated transformers.Provide manufacturer certification that the insulating oil contains no PCBs and affix a label to that effect on the transformer tank and on each oil drum
44、containing the insulating oil.Ship no transformer to the site until all factory tests and their results are approved by the Contracting Officer and the equipment is inspected and approved by the Contracting Officer unless he has given the manufacturer a written waiver.After the transformer arrives o
45、n site the Government will perform an insulation power factor test and take an oil sample for a dielectric test, dissolved gas analysis, water-in-oil (Karl Fischer) test, oil acidity test, and PCB content determination.SECTION 33 73 00.00 40 Page 8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.5 QUALIFICATIONS FOR MANUFACTURERSProvide material and equipment under this specification that is the standard catalog product of a manufacturer regularly engaged in the manufacture of oil filled transfo
